Bianchi I effective dynamics in Quantum Reduced Loop Gravity

Abstract : The effective quantum dynamics of Bianchi I spacetime is addressed within the statistical regularization scheme in Quantum Reduced Loop Gravity. The case of a minimally coupled massless scalar field is studied and compared with the effective $\bar{\mu}-$Loop Quantum Cosmology. The dynamics provided by the two approaches match in the semiclassical limit but differ significantly after the bounces. Analytical and numerical inspections show that energy density, expansion scalar and shear are bounded also in Quantum Reduced Loop Gravity and the classical singularity is resolved for generic initial conditions in all spatial directions.
Type de document :
Pré-publication, Document de travail
2019
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-02008880
Contributeur : Inspire Hep <>
Soumis le : mercredi 6 février 2019 - 01:28:11
Dernière modification le : mercredi 20 mars 2019 - 02:30:34

Lien texte intégral

Identifiants

Collections

Citation

Emanuele Alesci, Gioele Botta, Giovanni Luzi, Gabriele V. Stagno. Bianchi I effective dynamics in Quantum Reduced Loop Gravity. 2019. 〈hal-02008880〉

Partager

Métriques

Consultations de la notice

61